DocumentCode :
1219241
Title :
An examination of classical coupling of laser light to thin, dense plasma layers
Author :
Osborn, Richard K.
Author_Institution :
Department of Nuclear Engineering the University of Michigan Ann Arbor, Michigan 48104
Volume :
3
Issue :
3
fYear :
1975
Firstpage :
116
Lastpage :
121
Abstract :
Classical coupling, i. e. net absorption by inverse bremsstrahlung, of laser radiation in thin layers of dense (n >> nc) plasmas is described by Eqs. (19) and (26) according to a wave description of the radiation field and a simple hydrodynamic model of the plasma and by Eqs. (29) and (47) according to a photon transport model. Though it appears that neither of these descriptions can be explored further without computer assistance, their implications seem to be quite discrepant. Equation (28) implies that the Maxwell-hydrodynamic model leads to high reflectivity of thin, dense plasma layers. Equation (47), on the other hand, implies - because of the smallness of ?? ~ ??ei/?? ~10-3 - 10-2 - that any plasma layer is extremely absorptive in the density region for which n ~ nc. Though this discrepancy is, so far, based only upon qualitative arguments, it nevertheless appears real.
Keywords :
Electrons; Equations; Heat transfer; Optical coupling; Plasma density; Plasma displays; Plasma temperature; Space heating; Stress;
fLanguage :
English
Journal_Title :
Plasma Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-3813
Type :
jour
DOI :
10.1109/TPS.1975.4316889
Filename :
4316889
Link To Document :
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